Mist-producing nozzle.



R. MIHUNTER. MIST PRODUCING NOZZLE. APPLICATION FILED NOV.17, 1910.

1,041,798, Patented Oct. 1912.

Figi

' 7 liquid with a rotary action *spray ,spreads out from the nozzle in an inverted cone of fine mist.

. receiving the water-at its accelerating its forward motion.

, construction which,- together with the feal sired results with a nozzl few parts, all of which are static and so constructed that they will not besubjecteld to l- RUDOLPH M. HU NTER, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO WARREN WEBSTER & COMPANY A GORYORATION OF NEW JERSEY.

MIST-PRODUCING NOESZLE.

Specification of Letters Patent. Application filed November 17 Patented Uct. 22,1912.

emes.

1 1810. Serial No. 592,763.

inner part. of the head 8 is a tapering nozzle portion having its larger end pro- To all whom it may-concern:

Be it known that I, RUnoLrn: M. HUNTER, a citizen of the United States, and a resident \ltlcd with a polygonal flange 11 and a of the city of Philadelphia. county of Philascrew threaded annular flange 12 which dolphin, State'ot' Pennsylvania, have ln- 1 screws into the head 3 of the body vented an Im )rovement in Mist-Producing tapered chamber 9 of the nozzle Nozzles, of which the followingis a speci its larger end preferably fication.- l My inventiom has reference to mist pro- I Icing nozzles and consists of certain imprevements which are fully set forth inthe following specification and shown in the accompanying drawings which forms part 5 thereof. I v

The objedt of my invention is to provide i an fi' ti 'd i f idl ying a area compared to the small end of the tawhereby the pered chaii bentliiito \vhi'ch it opcns.- 'I also I prefer that the annular edgeof the aperture 10 shall be reduced in thickness so proximate a knife'edge.

Arranged Within the taperedcli'auihe'r'9 is a tapered water shape very much like a sectionpfan anger bit but tape -ng in outerditnensions. the taof considerably a rger (Puss section than the cross section of the aperture in the part, the Hare of the aperture in the nipple adjacent to the mizzlepermitting the water to spread into the chamber of the nozzle. The small end of the "object is furtherto produc e the dee composed oi'bnt wear or clogging.

My invent on consists of a nozzle head having a water passageway through'it terminating in a smallapert-ure through which i commensurate with the taper of the/ch t I her '9 sot-hat the sajdspiml guidc port 13 snugly fits the tapered chamber 9 ol itilic nozzle portion and extends throughout ,its entire length. it is thereliy supported with-- in the taperednozzle and 110 l )10SSltI 'G,()'fli-1E Water can drive it forward. It; lower end is substantially even with tl1e ';holtoxn of the annular flange 7 and when the said flange is screwedinto the. head fitthe spiral gtiide 13 is held in place and sufficient pressure may be applied to'fit' when screwi n,q thc erture being made estend adjacent to tightly fitting the said conical passage and l largeend and cans 1 ing it to takeon a rotary motion in passing through the nozzle ant jtt the same time y nvention alsocomprehends details of l tures above s ecifierl, will be better underdevice together to create a suiiicient friction stood by re erence'to the drawings, .in betweensald parts and the spiral tapered which r 1 water guide 13wl1ich will prevent the latter t 1 2 is the base or provided with alarge hexagonal portion rer ing an aperture from rotating under the action of the wa-- ter passing throuli the spiral passages formed thereby. he small end of the spiral water 'gliide 13 is terminated pref- Figure 1 is a prslpective view of a mist l producing nozzle'em odying my invention; f Fig. 2 is a vertical sectional elevation of the l same; and Fig.3 is a perspective view ofthe l tapering screw" removed from the nozzle head.

b0dy of the head and is cessed at 7 and terminating in a nip le haw 5 and screw threa ed at 4 so as to be adapted for attachment to ordinary piping through which the wateris to .be fed to the nozzle, The aperture 5 in the nipple is preferablyenlarged at in thel part. The. part 8.12am

large end of the ta pcred' as F) ap per of the spiral flanges being sabstant ia'llv m [(711 of the tapered nozzle two parts of the spraying erably' atla short distance below the aper'-.

; the water is supplied to being required to nipple 5 at itssmallest V i 65 nezzle f-l isprovided with a central aperture 10 winch is preferably of relatively-small guide 13 formed irrspiral pass- 'P s by the spiral guide 13 and the walls of the through the spiral apertures formed chamber 9. This motion ;to the 'wateris positive and at the same time the speed of travel of the water is accelerated because it is required to flow through a gradually diminishing area of passage so that when the water reaches the small end of the tapered chamber 9, it is'moving ata very rapid speed and at the same time rotating with great force. These combined motions,

namely, rectilinear and rotary, cause the water upon 'passing through, the aperture to burst into a. fine mist, such that it is in excellent condition of subdivisioirto be absorbed by the atmosphere in connection with humidity controlling devices or for other purposes.

It is evident that the spiral guide 13 mhy have its pitch gradually increased from the large to the small end and is shown of that construction in Fig. 2, the said increasingpitch assisting the acceleration of movement given to the water in its passage through the nozzle. The head 3, as well as the flange 11. is

' preferably formed with polygonal perimemamas portion for purposes of cleaning the device without fear of improperly connecting the parts in reassembling.

I have shown my improvement in the form whichl have found excellently adapted for commercial purposes, and while I prefer thisconstruction, the details thereof may be supply aperture, a nozzle portion detachahly secured upon the head and having a taperedchambei; within the same, the large end of which chamber is next to the head and the small end terminating at its apex in a boundary formed like a knife. edge with the incline on the insideas a continuation of the taper of the chamber, and a tapered guide piece fitting the tapered chamber nearly to its apex and providing a transverse spiral wall to form two spiral tapered passages, the small end of which wall is made of small thickness to permit the two spiral columns of water to unite into a solid body before passing through the final portion of the tapered chamber adjacent to the aperture.

In testimony of which invention, hereunto set my hand.

, R. M. HUNTER. Witnesses;

- ll. M. KELLY, :E. H. BARLOW. 

